Josep Roig is the Secretary General of United Cities and Local Governments since September 2011. He was a founding member of Metropolis in 1985, prior to becoming the Secretary General of Metropolis in 1999. He held the position of Deputy Secretary as well as Executive Director of Metropolis’99 between 1997 and 1999.

Josep Roig was also the secretary of Barcelona Quality Network until 1997, the Quality Coordinator of Barcelona 2000 Strategic Plan, and a consultant for public organizations. In his position in Barcelona Metropolitan Corporation (CMB) (1983-1990, 1996-2000, 2009-2011), he worked for economic promotion, asset management, finances and planning, first as the Coordinator of Technological and Industrial State Parks, then as Deputy Director and finally as Financial Director and Deputy Director General, for the above mentioned sectors. Between 1990 and 1994, Josep Roig was the Director General of the University of Barcelona and between 1977 and 1985 he was a lecturer in Urban and Regional Planning, Department of Economics, University of Barcelona.